source: DCWoRMS/branches/coolemall/src/schedframe/scheduling/policy/AbstractManagementSystem.java @ 1447

package schedframe.scheduling.policy;

import java.util.HashMap;
import java.util.Map;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.joda.time.DateTimeUtilsExt;

import dcworms.schedframe.scheduling.ExecTask;
import dcworms.schedframe.scheduling.Executable;
import dcworms.schedframe.scheduling.queues.AbstractStatsSupportingQueue;

import schedframe.PluginConfiguration;
import schedframe.events.EventType;
import schedframe.events.scheduling.SchedulingEventType;
import schedframe.scheduling.Scheduler;
import schedframe.scheduling.WorkloadUnitHandler;
import schedframe.scheduling.manager.resources.ManagedResources;
import schedframe.scheduling.manager.resources.ResourceManager;
import schedframe.scheduling.manager.resources.ResourceManagerFactory;
import schedframe.scheduling.manager.tasks.JobRegistry;
import schedframe.scheduling.manager.tasks.JobRegistryImpl;
import schedframe.scheduling.plan.AllocationInterface;
import schedframe.scheduling.plan.SchedulingPlanInterface;
import schedframe.scheduling.plugin.ModuleList;
import schedframe.scheduling.plugin.SchedulingPlugin;
import schedframe.scheduling.plugin.estimation.ExecutionTimeEstimationPlugin;
import schedframe.scheduling.manager.resources.ResourceAllocation;
import schedframe.scheduling.queue.TaskQueue;
import schedframe.scheduling.queue.TaskQueueList;
import schedframe.scheduling.tasks.Job;
import schedframe.scheduling.tasks.TaskInterface;
import schedframe.scheduling.tasks.WorkloadUnit;
import simulator.DCWormsConstants;
import eduni.simjava.Sim_event;
import gridsim.GridSim;
import gridsim.GridSimTags;
import gridsim.IO_data;
import gridsim.dcworms.DCWormsTags;

public abstract class AbstractManagementSystem {

        private Log log = LogFactory.getLog(AbstractManagementSystem.class);
        
        protected String name;

        protected TaskQueueList queues;
        protected ResourceManager resourceManager;
        protected JobRegistryImpl jobRegistry;
        protected ModuleList moduleList;
        
        protected SchedulingPlugin schedulingPlugin;
        protected ExecutionTimeEstimationPlugin execTimeEstimationPlugin;

        protected Scheduler scheduler;
        

        public AbstractManagementSystem(String providerId, String entityName,
                        ExecutionTimeEstimationPlugin execTimeEstPlugin, TaskQueueList queues) {
                
                //this.name = entityName + "@" + providerId;
                this.name = providerId;
                this.queues = queues;
                this.jobRegistry = new JobRegistryImpl(name);
                this.execTimeEstimationPlugin = execTimeEstPlugin;
        }
        
        public void init(Scheduler sched, ManagedResources managedResources) {
                scheduler = sched;
                resourceManager = ResourceManagerFactory.createResourceManager(scheduler, managedResources);
                scheduler.set_stat(DCWormsConstants.getResourcesStatisticsObject(queues.size()));
                for(int i = 0; i < queues.size(); i++){
                        TaskQueue q = queues.get(i);
                        if(q instanceof AbstractStatsSupportingQueue<?>){
                                AbstractStatsSupportingQueue<?> queue = (AbstractStatsSupportingQueue<?>) q;
                                queue.setStats(scheduler.get_stat(), DCWormsConstants.TASKS_QUEUE_LENGTH_MEASURE_NAME + "_" + Integer.toString(i));
                        }
                }
        }
        
        public void processEvent(Sim_event ev) {
                processOtherEvent(ev);
        }

        protected void processOtherEvent(Sim_event ev) {
                if (ev == null) {
                        System.out.println(name + ".processOtherEvent(): " + "Error - an event is null.");
                        return;
                }

                log.error(name + ".processOtherEvent(): Unable to "
                                + "handle request from an event with a tag number " + ev.get_tag());
        }
        
        
        public String getName() {
                return name;
        }
        
        public ResourceManager getResourceManager() {
                if (resourceManager instanceof ResourceManager)
                        return (ResourceManager) resourceManager;
                else
                        return null;
        }

        public ResourceAllocation getAllocationManager() {
                if (resourceManager instanceof ResourceAllocation)
                        return (ResourceAllocation) resourceManager;
                else
                        return null;
        }

        protected JobRegistry getJobRegistry(){
                return jobRegistry;
        }
        
        public Scheduler getScheduler() {
                return scheduler;
        }
        
        public PluginConfiguration getSchedulingPluginConfiguration() {
                return schedulingPlugin.getConfiguration();
        }

        public TaskQueueList getQueues(){
                return queues;
        }
        
        public Map<String, Integer> getQueuesSize() {
                Map<String, Integer> queue_size = new HashMap<String, Integer>();
                for (TaskQueue queue : queues) {
                        queue_size.put(queue.getName(), queue.size());
                }
                return queue_size;
        }
        
        //POPRAWIC  (ale co? bo teraz chyba jest ok)
        protected void submitTask(TaskInterface<?> task, AllocationInterface<?> allocation) {
                String providerName = allocation.getProviderName();
                if (providerName == null) {
                        return;
                }
                removeFromQueue(task);
                scheduler.send(providerName, GridSimTags.SCHEDULE_NOW, GridSimTags.GRIDLET_SUBMIT, task);       
        }

        protected boolean sendFinishedWorkloadUnit(WorkloadUnit wu) {
                
                Executable exec = (Executable) wu;
                if(scheduler.getParent() == null)
                {
                        Job job = jobRegistry.getJob(exec.getJobId());

                        if(job.isFinished()){
                                scheduler.send(job.getSenderId(), GridSimTags.SCHEDULE_NOW, GridSimTags.GRIDLET_RETURN, job);
                                return true;
                        }
                        else return true;
                }
        
        IO_data obj = new IO_data(exec, 0, /*task.getGridletOutputSize(),*/ GridSim.getEntityId(scheduler.getParent().get_name()));
        scheduler.send(scheduler.getOutputPort(), 0.0, GridSimTags.GRIDLET_RETURN, obj);
                return true;
        }

        protected void sendExecutableReadyEvent(ExecTask exec) {

                long delay = 0;
                try {
                        long expectedStartTime = exec.getExecutionStartTime().getMillis() / 1000;
                        long currentTime = DateTimeUtilsExt.currentTimeMillis() / 1000;
                        delay = expectedStartTime - currentTime;
                        if (delay < 0)
                                delay = 0;
                } catch (NoSuchFieldException e) {
                        delay = 0;
                }

                scheduler.sendInternal(Long.valueOf(delay).doubleValue(), DCWormsTags.TASK_READY_FOR_EXECUTION,
                                exec);
        }
        
        protected void sendTimerEvent() {
                PluginConfiguration pluginConfig = schedulingPlugin.getConfiguration();
                if (pluginConfig != null) {
                        Map<EventType, Object> events = pluginConfig.getServedEvents();
                        if (events != null) {
                                Object obj = events.get(SchedulingEventType.TIMER);
                                if (obj != null) {
                                        int delay = (Integer) obj;
                                        scheduler.sendInternal(delay, DCWormsTags.TIMER, null);
                                }
                        }
                }
        }
        
        protected boolean removeFromQueue(TaskInterface<?> task) {
                for(TaskQueue queue : queues){
                        if(queue.contains(task)){
                                queue.remove(task);
                                return true;
                        }
                }
                return false;
        }
        
        public abstract WorkloadUnitHandler getWorkloadUnitHandler();
        
        public abstract void notifySubmittedWorkloadUnit(WorkloadUnit wu);

        public abstract void notifyReturnedWorkloadUnit(WorkloadUnit wu);

        protected abstract void executeSchedulingPlan(SchedulingPlanInterface<?> decision);

}